^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) BlueZ - Bluetooth protocol stack for Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) Copyright (C) 2000-2001 Qualcomm Incorporated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) Copyright (C) 2010 Google Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) it under the terms of the GNU General Public License version 2 as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) published by the Free Software Foundation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) SOFTWARE IS DISCLAIMED.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #ifndef __L2CAP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define __L2CAP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/android_kabi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* L2CAP defaults */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define L2CAP_DEFAULT_MTU 672
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define L2CAP_DEFAULT_MIN_MTU 48
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define L2CAP_EFS_DEFAULT_FLUSH_TO 0xFFFFFFFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define L2CAP_DEFAULT_TX_WINDOW 63
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define L2CAP_DEFAULT_EXT_WINDOW 0x3FFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define L2CAP_DEFAULT_MAX_TX 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define L2CAP_DEFAULT_MAX_PDU_SIZE 1492 /* Sized for AMP packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define L2CAP_DEFAULT_ACK_TO 200
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define L2CAP_DEFAULT_MAX_SDU_SIZE 0xFFFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define L2CAP_DEFAULT_SDU_ITIME 0xFFFFFFFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define L2CAP_DEFAULT_ACC_LAT 0xFFFFFFFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define L2CAP_BREDR_MAX_PAYLOAD 1019 /* 3-DH5 packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define L2CAP_LE_MIN_MTU 23
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define L2CAP_ECRED_CONN_SCID_MAX 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define L2CAP_DISC_TIMEOUT msecs_to_jiffies(100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define L2CAP_DISC_REJ_TIMEOUT msecs_to_jiffies(5000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define L2CAP_ENC_TIMEOUT msecs_to_jiffies(5000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define L2CAP_CONN_TIMEOUT msecs_to_jiffies(40000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define L2CAP_INFO_TIMEOUT msecs_to_jiffies(4000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define L2CAP_MOVE_TIMEOUT msecs_to_jiffies(4000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define L2CAP_MOVE_ERTX_TIMEOUT msecs_to_jiffies(60000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define L2CAP_WAIT_ACK_POLL_PERIOD msecs_to_jiffies(200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define L2CAP_WAIT_ACK_TIMEOUT msecs_to_jiffies(10000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define L2CAP_A2MP_DEFAULT_MTU 670
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* L2CAP socket address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct sockaddr_l2 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) sa_family_t l2_family;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) __le16 l2_psm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) bdaddr_t l2_bdaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) __le16 l2_cid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) __u8 l2_bdaddr_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* L2CAP socket options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define L2CAP_OPTIONS 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct l2cap_options {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) __u16 omtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) __u16 imtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) __u16 flush_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) __u8 mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) __u8 fcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) __u8 max_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) __u16 txwin_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define L2CAP_CONNINFO 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct l2cap_conninfo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) __u16 hci_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) __u8 dev_class[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #define L2CAP_LM 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #define L2CAP_LM_MASTER 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define L2CAP_LM_AUTH 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define L2CAP_LM_ENCRYPT 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define L2CAP_LM_TRUSTED 0x0008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define L2CAP_LM_RELIABLE 0x0010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define L2CAP_LM_SECURE 0x0020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #define L2CAP_LM_FIPS 0x0040
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /* L2CAP command codes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #define L2CAP_COMMAND_REJ 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #define L2CAP_CONN_REQ 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define L2CAP_CONN_RSP 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #define L2CAP_CONF_REQ 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define L2CAP_CONF_RSP 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define L2CAP_DISCONN_REQ 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define L2CAP_DISCONN_RSP 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define L2CAP_ECHO_REQ 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define L2CAP_ECHO_RSP 0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define L2CAP_INFO_REQ 0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define L2CAP_INFO_RSP 0x0b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define L2CAP_CREATE_CHAN_REQ 0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define L2CAP_CREATE_CHAN_RSP 0x0d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define L2CAP_MOVE_CHAN_REQ 0x0e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define L2CAP_MOVE_CHAN_RSP 0x0f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define L2CAP_MOVE_CHAN_CFM 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define L2CAP_MOVE_CHAN_CFM_RSP 0x11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define L2CAP_CONN_PARAM_UPDATE_REQ 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define L2CAP_CONN_PARAM_UPDATE_RSP 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #define L2CAP_LE_CONN_REQ 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define L2CAP_LE_CONN_RSP 0x15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #define L2CAP_LE_CREDITS 0x16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #define L2CAP_ECRED_CONN_REQ 0x17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define L2CAP_ECRED_CONN_RSP 0x18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define L2CAP_ECRED_RECONF_REQ 0x19
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define L2CAP_ECRED_RECONF_RSP 0x1a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /* L2CAP extended feature mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #define L2CAP_FEAT_FLOWCTL 0x00000001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #define L2CAP_FEAT_RETRANS 0x00000002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) #define L2CAP_FEAT_BIDIR_QOS 0x00000004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) #define L2CAP_FEAT_ERTM 0x00000008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) #define L2CAP_FEAT_STREAMING 0x00000010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #define L2CAP_FEAT_FCS 0x00000020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) #define L2CAP_FEAT_EXT_FLOW 0x00000040
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #define L2CAP_FEAT_FIXED_CHAN 0x00000080
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #define L2CAP_FEAT_EXT_WINDOW 0x00000100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define L2CAP_FEAT_UCD 0x00000200
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /* L2CAP checksum option */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define L2CAP_FCS_NONE 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #define L2CAP_FCS_CRC16 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* L2CAP fixed channels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #define L2CAP_FC_SIG_BREDR 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define L2CAP_FC_CONNLESS 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define L2CAP_FC_A2MP 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define L2CAP_FC_ATT 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define L2CAP_FC_SIG_LE 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define L2CAP_FC_SMP_LE 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define L2CAP_FC_SMP_BREDR 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* L2CAP Control Field bit masks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define L2CAP_CTRL_SAR 0xC000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) #define L2CAP_CTRL_REQSEQ 0x3F00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) #define L2CAP_CTRL_TXSEQ 0x007E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) #define L2CAP_CTRL_SUPERVISE 0x000C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define L2CAP_CTRL_RETRANS 0x0080
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #define L2CAP_CTRL_FINAL 0x0080
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #define L2CAP_CTRL_POLL 0x0010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) #define L2CAP_CTRL_TXSEQ_SHIFT 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #define L2CAP_CTRL_SUPER_SHIFT 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #define L2CAP_CTRL_POLL_SHIFT 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #define L2CAP_CTRL_FINAL_SHIFT 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #define L2CAP_CTRL_REQSEQ_SHIFT 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) #define L2CAP_CTRL_SAR_SHIFT 14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) /* L2CAP Extended Control Field bit mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) #define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #define L2CAP_EXT_CTRL_SAR 0x00030000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) #define L2CAP_EXT_CTRL_SUPERVISE 0x00030000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) #define L2CAP_EXT_CTRL_POLL 0x00040000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #define L2CAP_EXT_CTRL_FINAL 0x00000002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #define L2CAP_EXT_CTRL_FINAL_SHIFT 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) #define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) #define L2CAP_EXT_CTRL_SAR_SHIFT 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #define L2CAP_EXT_CTRL_SUPER_SHIFT 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) #define L2CAP_EXT_CTRL_POLL_SHIFT 18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) /* L2CAP Supervisory Function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) #define L2CAP_SUPER_RR 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #define L2CAP_SUPER_REJ 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) #define L2CAP_SUPER_RNR 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) #define L2CAP_SUPER_SREJ 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /* L2CAP Segmentation and Reassembly */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) #define L2CAP_SAR_UNSEGMENTED 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) #define L2CAP_SAR_START 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) #define L2CAP_SAR_END 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) #define L2CAP_SAR_CONTINUE 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) /* L2CAP Command rej. reasons */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) #define L2CAP_REJ_MTU_EXCEEDED 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) #define L2CAP_REJ_INVALID_CID 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) /* L2CAP structures */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct l2cap_hdr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) __le16 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) __le16 cid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #define L2CAP_HDR_SIZE 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) #define L2CAP_ENH_HDR_SIZE 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #define L2CAP_EXT_HDR_SIZE 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) #define L2CAP_FCS_SIZE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) #define L2CAP_SDULEN_SIZE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #define L2CAP_PSMLEN_SIZE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #define L2CAP_ENH_CTRL_SIZE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #define L2CAP_EXT_CTRL_SIZE 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct l2cap_cmd_hdr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) __u8 code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) __u8 ident;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) __le16 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) #define L2CAP_CMD_HDR_SIZE 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) struct l2cap_cmd_rej_unk {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) __le16 reason;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct l2cap_cmd_rej_mtu {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) __le16 reason;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) __le16 max_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct l2cap_cmd_rej_cid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) __le16 reason;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) __le16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) struct l2cap_conn_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) __le16 psm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) struct l2cap_conn_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) __le16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) __le16 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) /* protocol/service multiplexer (PSM) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) #define L2CAP_PSM_SDP 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) #define L2CAP_PSM_RFCOMM 0x0003
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) #define L2CAP_PSM_3DSP 0x0021
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) #define L2CAP_PSM_IPSP 0x0023 /* 6LoWPAN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) #define L2CAP_PSM_DYN_START 0x1001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) #define L2CAP_PSM_DYN_END 0xffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) #define L2CAP_PSM_AUTO_END 0x10ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) #define L2CAP_PSM_LE_DYN_START 0x0080
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) #define L2CAP_PSM_LE_DYN_END 0x00ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) /* channel identifier */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) #define L2CAP_CID_SIGNALING 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) #define L2CAP_CID_CONN_LESS 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #define L2CAP_CID_A2MP 0x0003
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) #define L2CAP_CID_ATT 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) #define L2CAP_CID_LE_SIGNALING 0x0005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) #define L2CAP_CID_SMP 0x0006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) #define L2CAP_CID_SMP_BREDR 0x0007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) #define L2CAP_CID_DYN_START 0x0040
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) #define L2CAP_CID_DYN_END 0xffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) #define L2CAP_CID_LE_DYN_END 0x007f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) /* connect/create channel results */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) #define L2CAP_CR_SUCCESS 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) #define L2CAP_CR_PEND 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) #define L2CAP_CR_BAD_PSM 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) #define L2CAP_CR_SEC_BLOCK 0x0003
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) #define L2CAP_CR_NO_MEM 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) #define L2CAP_CR_BAD_AMP 0x0005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) #define L2CAP_CR_INVALID_SCID 0x0006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #define L2CAP_CR_SCID_IN_USE 0x0007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) /* credit based connect results */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) #define L2CAP_CR_LE_SUCCESS 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) #define L2CAP_CR_LE_BAD_PSM 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) #define L2CAP_CR_LE_NO_MEM 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) #define L2CAP_CR_LE_AUTHENTICATION 0x0005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) #define L2CAP_CR_LE_AUTHORIZATION 0x0006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) #define L2CAP_CR_LE_BAD_KEY_SIZE 0x0007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) #define L2CAP_CR_LE_ENCRYPTION 0x0008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) #define L2CAP_CR_LE_INVALID_SCID 0x0009
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) #define L2CAP_CR_LE_SCID_IN_USE 0X000A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) #define L2CAP_CR_LE_UNACCEPT_PARAMS 0X000B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) #define L2CAP_CR_LE_INVALID_PARAMS 0X000C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) /* connect/create channel status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) #define L2CAP_CS_NO_INFO 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) #define L2CAP_CS_AUTHEN_PEND 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) #define L2CAP_CS_AUTHOR_PEND 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct l2cap_conf_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) __le16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) __le16 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) __u8 data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct l2cap_conf_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) __le16 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) __u8 data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) #define L2CAP_CONF_SUCCESS 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) #define L2CAP_CONF_UNACCEPT 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) #define L2CAP_CONF_REJECT 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) #define L2CAP_CONF_UNKNOWN 0x0003
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) #define L2CAP_CONF_PENDING 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) #define L2CAP_CONF_EFS_REJECT 0x0005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) /* configuration req/rsp continuation flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) #define L2CAP_CONF_FLAG_CONTINUATION 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) struct l2cap_conf_opt {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) __u8 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) __u8 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) __u8 val[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) #define L2CAP_CONF_OPT_SIZE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) #define L2CAP_CONF_HINT 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) #define L2CAP_CONF_MASK 0x7f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) #define L2CAP_CONF_MTU 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) #define L2CAP_CONF_FLUSH_TO 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) #define L2CAP_CONF_QOS 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) #define L2CAP_CONF_RFC 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) #define L2CAP_CONF_FCS 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) #define L2CAP_CONF_EFS 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) #define L2CAP_CONF_EWS 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) #define L2CAP_CONF_MAX_SIZE 22
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct l2cap_conf_rfc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) __u8 mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) __u8 txwin_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) __u8 max_transmit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) __le16 retrans_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) __le16 monitor_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) __le16 max_pdu_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) #define L2CAP_MODE_BASIC 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) #define L2CAP_MODE_RETRANS 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) #define L2CAP_MODE_FLOWCTL 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) #define L2CAP_MODE_ERTM 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) #define L2CAP_MODE_STREAMING 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) /* Unlike the above this one doesn't actually map to anything that would
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * ever be sent over the air. Therefore, use a value that's unlikely to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * ever be used in the BR/EDR configuration phase.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) #define L2CAP_MODE_LE_FLOWCTL 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) #define L2CAP_MODE_EXT_FLOWCTL 0x81
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) struct l2cap_conf_efs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) __u8 id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) __u8 stype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) __le16 msdu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) __le32 sdu_itime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) __le32 acc_lat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) __le32 flush_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) #define L2CAP_SERV_NOTRAFIC 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) #define L2CAP_SERV_BESTEFFORT 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) #define L2CAP_SERV_GUARANTEED 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) #define L2CAP_BESTEFFORT_ID 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) struct l2cap_disconn_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) __le16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) struct l2cap_disconn_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) __le16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct l2cap_info_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) __le16 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) struct l2cap_info_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) __le16 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) __u8 data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) struct l2cap_create_chan_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) __le16 psm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) __u8 amp_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) struct l2cap_create_chan_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) __le16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) __le16 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) struct l2cap_move_chan_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) __le16 icid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) __u8 dest_amp_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct l2cap_move_chan_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) __le16 icid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) #define L2CAP_MR_SUCCESS 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) #define L2CAP_MR_PEND 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) #define L2CAP_MR_BAD_ID 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) #define L2CAP_MR_SAME_ID 0x0003
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) #define L2CAP_MR_NOT_SUPP 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) #define L2CAP_MR_COLLISION 0x0005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) #define L2CAP_MR_NOT_ALLOWED 0x0006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) struct l2cap_move_chan_cfm {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) __le16 icid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) #define L2CAP_MC_CONFIRMED 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) #define L2CAP_MC_UNCONFIRMED 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) struct l2cap_move_chan_cfm_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) __le16 icid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) /* info type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) #define L2CAP_IT_CL_MTU 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) #define L2CAP_IT_FEAT_MASK 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) #define L2CAP_IT_FIXED_CHAN 0x0003
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) /* info result */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) #define L2CAP_IR_SUCCESS 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) #define L2CAP_IR_NOTSUPP 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) struct l2cap_conn_param_update_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) __le16 min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) __le16 max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) __le16 latency;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) __le16 to_multiplier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) struct l2cap_conn_param_update_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) /* Connection Parameters result */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) #define L2CAP_CONN_PARAM_ACCEPTED 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) #define L2CAP_CONN_PARAM_REJECTED 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) struct l2cap_le_conn_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) __le16 psm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) __le16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) __le16 mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) __le16 mps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) __le16 credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) struct l2cap_le_conn_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) __le16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) __le16 mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) __le16 mps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) __le16 credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) struct l2cap_le_credits {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) __le16 cid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) __le16 credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) #define L2CAP_ECRED_MIN_MTU 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) #define L2CAP_ECRED_MIN_MPS 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) struct l2cap_ecred_conn_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) __le16 psm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) __le16 mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) __le16 mps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) __le16 credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) __le16 scid[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) struct l2cap_ecred_conn_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) __le16 mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) __le16 mps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) __le16 credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) __le16 dcid[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) struct l2cap_ecred_reconf_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) __le16 mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) __le16 mps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) __le16 scid[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) #define L2CAP_RECONF_SUCCESS 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) #define L2CAP_RECONF_INVALID_MTU 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) #define L2CAP_RECONF_INVALID_MPS 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) struct l2cap_ecred_reconf_rsp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) __le16 result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) /* ----- L2CAP channels and connections ----- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct l2cap_seq_list {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) __u16 head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) __u16 tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) __u16 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) __u16 *list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) #define L2CAP_SEQ_LIST_CLEAR 0xFFFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) #define L2CAP_SEQ_LIST_TAIL 0x8000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) struct l2cap_chan {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) struct l2cap_conn *conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) struct hci_conn *hs_hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) struct hci_chan *hs_hchan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) struct kref kref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) atomic_t nesting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) __u8 state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) bdaddr_t dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) __u8 dst_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) bdaddr_t src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) __u8 src_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) __le16 psm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) __le16 sport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) __u16 dcid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) __u16 scid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) __u16 imtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) __u16 omtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) __u16 flush_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) __u8 mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) __u8 chan_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) __u8 chan_policy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) __u8 sec_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) __u8 ident;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) __u8 conf_req[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) __u8 conf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) __u8 num_conf_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) __u8 num_conf_rsp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) __u8 fcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) __u16 tx_win;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) __u16 tx_win_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) __u16 ack_win;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) __u8 max_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) __u16 retrans_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) __u16 monitor_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) __u16 mps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) __u16 tx_credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) __u16 rx_credits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) __u8 tx_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) __u8 rx_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) unsigned long conf_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) unsigned long conn_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) __u8 remote_amp_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) __u8 local_amp_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) __u8 move_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) __u8 move_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) __u8 move_role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) __u16 next_tx_seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) __u16 expected_ack_seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) __u16 expected_tx_seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) __u16 buffer_seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) __u16 srej_save_reqseq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) __u16 last_acked_seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) __u16 frames_sent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) __u16 unacked_frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) __u8 retry_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) __u16 sdu_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) struct sk_buff *sdu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) struct sk_buff *sdu_last_frag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) __u16 remote_tx_win;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) __u8 remote_max_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) __u16 remote_mps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) __u8 local_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) __u8 local_stype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) __u16 local_msdu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) __u32 local_sdu_itime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) __u32 local_acc_lat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) __u32 local_flush_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) __u8 remote_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) __u8 remote_stype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) __u16 remote_msdu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) __u32 remote_sdu_itime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) __u32 remote_acc_lat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) __u32 remote_flush_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) struct delayed_work chan_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) struct delayed_work retrans_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) struct delayed_work monitor_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) struct delayed_work ack_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) struct sk_buff *tx_send_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) struct sk_buff_head tx_q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) struct sk_buff_head srej_q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) struct l2cap_seq_list srej_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) struct l2cap_seq_list retrans_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) struct list_head global_l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) void *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) const struct l2cap_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) ANDROID_KABI_RESERVE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) ANDROID_KABI_RESERVE(2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) struct l2cap_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) struct l2cap_chan *(*new_connection) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) int (*recv) (struct l2cap_chan * chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) void (*teardown) (struct l2cap_chan *chan, int err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) void (*close) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) void (*state_change) (struct l2cap_chan *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) int state, int err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) void (*ready) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) void (*defer) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) void (*resume) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) void (*suspend) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) void (*set_shutdown) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) long (*get_sndtimeo) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) struct pid *(*get_peer_pid) (struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) unsigned long hdr_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) unsigned long len, int nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) int (*filter) (struct l2cap_chan * chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) ANDROID_KABI_RESERVE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) ANDROID_KABI_RESERVE(2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) struct l2cap_conn {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) struct hci_conn *hcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) struct hci_chan *hchan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) unsigned int mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) __u32 feat_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) __u8 remote_fixed_chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) __u8 local_fixed_chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) __u8 info_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) __u8 info_ident;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) struct delayed_work info_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) struct sk_buff *rx_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) __u32 rx_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) __u8 tx_ident;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) struct mutex ident_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) struct sk_buff_head pending_rx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) struct work_struct pending_rx_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) struct work_struct id_addr_update_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) __u8 disc_reason;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) struct l2cap_chan *smp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) struct list_head chan_l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) struct mutex chan_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) struct kref ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) struct list_head users;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) ANDROID_KABI_RESERVE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) ANDROID_KABI_RESERVE(2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) struct l2cap_user {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) int (*probe) (struct l2cap_conn *conn, struct l2cap_user *user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) void (*remove) (struct l2cap_conn *conn, struct l2cap_user *user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) #define L2CAP_CHAN_RAW 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) #define L2CAP_CHAN_CONN_LESS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) #define L2CAP_CHAN_CONN_ORIENTED 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) #define L2CAP_CHAN_FIXED 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) /* ----- L2CAP socket info ----- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) struct l2cap_pinfo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) struct bt_sock bt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) struct l2cap_chan *chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) struct sk_buff *rx_busy_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) CONF_REQ_SENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) CONF_INPUT_DONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) CONF_OUTPUT_DONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) CONF_MTU_DONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) CONF_MODE_DONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) CONF_CONNECT_PEND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) CONF_RECV_NO_FCS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) CONF_STATE2_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) CONF_EWS_RECV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) CONF_LOC_CONF_PEND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) CONF_REM_CONF_PEND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) CONF_NOT_COMPLETE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) #define L2CAP_CONF_MAX_CONF_REQ 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) #define L2CAP_CONF_MAX_CONF_RSP 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) CONN_SREJ_SENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) CONN_WAIT_F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) CONN_SREJ_ACT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) CONN_SEND_PBIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) CONN_REMOTE_BUSY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) CONN_LOCAL_BUSY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) CONN_REJ_ACT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) CONN_SEND_FBIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) CONN_RNR_SENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) /* Definitions for flags in l2cap_chan */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) FLAG_ROLE_SWITCH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) FLAG_FORCE_ACTIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) FLAG_FORCE_RELIABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) FLAG_FLUSHABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) FLAG_EXT_CTRL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) FLAG_EFS_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) FLAG_DEFER_SETUP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) FLAG_LE_CONN_REQ_SENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) FLAG_ECRED_CONN_REQ_SENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) FLAG_PENDING_SECURITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) FLAG_HOLD_HCI_CONN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) /* Lock nesting levels for L2CAP channels. We need these because lockdep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) * otherwise considers all channels equal and will e.g. complain about a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) * connection oriented channel triggering SMP procedures or a listening
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) * channel creating and locking a child channel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) L2CAP_NESTING_SMP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) L2CAP_NESTING_NORMAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) L2CAP_NESTING_PARENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) L2CAP_TX_STATE_XMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) L2CAP_TX_STATE_WAIT_F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) L2CAP_RX_STATE_RECV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) L2CAP_RX_STATE_SREJ_SENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) L2CAP_RX_STATE_MOVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) L2CAP_RX_STATE_WAIT_P,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) L2CAP_RX_STATE_WAIT_F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) L2CAP_TXSEQ_EXPECTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) L2CAP_TXSEQ_EXPECTED_SREJ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) L2CAP_TXSEQ_UNEXPECTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) L2CAP_TXSEQ_UNEXPECTED_SREJ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) L2CAP_TXSEQ_DUPLICATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) L2CAP_TXSEQ_DUPLICATE_SREJ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) L2CAP_TXSEQ_INVALID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) L2CAP_TXSEQ_INVALID_IGNORE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) L2CAP_EV_DATA_REQUEST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) L2CAP_EV_LOCAL_BUSY_DETECTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) L2CAP_EV_LOCAL_BUSY_CLEAR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) L2CAP_EV_RECV_REQSEQ_AND_FBIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) L2CAP_EV_RECV_FBIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) L2CAP_EV_RETRANS_TO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) L2CAP_EV_MONITOR_TO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) L2CAP_EV_EXPLICIT_POLL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) L2CAP_EV_RECV_IFRAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) L2CAP_EV_RECV_RR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) L2CAP_EV_RECV_REJ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) L2CAP_EV_RECV_RNR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) L2CAP_EV_RECV_SREJ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) L2CAP_EV_RECV_FRAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) L2CAP_MOVE_ROLE_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) L2CAP_MOVE_ROLE_INITIATOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) L2CAP_MOVE_ROLE_RESPONDER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) L2CAP_MOVE_STABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) L2CAP_MOVE_WAIT_REQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) L2CAP_MOVE_WAIT_RSP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) L2CAP_MOVE_WAIT_RSP_SUCCESS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) L2CAP_MOVE_WAIT_CONFIRM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) L2CAP_MOVE_WAIT_CONFIRM_RSP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) L2CAP_MOVE_WAIT_LOGICAL_COMP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) L2CAP_MOVE_WAIT_LOGICAL_CFM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) L2CAP_MOVE_WAIT_LOCAL_BUSY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) L2CAP_MOVE_WAIT_PREPARE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) void l2cap_chan_hold(struct l2cap_chan *c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) void l2cap_chan_put(struct l2cap_chan *c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) static inline void l2cap_chan_lock(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) mutex_lock_nested(&chan->lock, atomic_read(&chan->nesting));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) static inline void l2cap_chan_unlock(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) mutex_unlock(&chan->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) static inline void l2cap_set_timer(struct l2cap_chan *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) struct delayed_work *work, long timeout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) BT_DBG("chan %p state %s timeout %ld", chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) state_to_string(chan->state), timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) /* If delayed work cancelled do not hold(chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) since it is already done with previous set_timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) if (!cancel_delayed_work(work))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) l2cap_chan_hold(chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) schedule_delayed_work(work, timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) static inline bool l2cap_clear_timer(struct l2cap_chan *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) struct delayed_work *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) bool ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) /* put(chan) if delayed work cancelled otherwise it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) is done in delayed work function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) ret = cancel_delayed_work(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) l2cap_chan_put(chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) #define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) #define __clear_chan_timer(c) l2cap_clear_timer(c, &c->chan_timer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) #define __clear_retrans_timer(c) l2cap_clear_timer(c, &c->retrans_timer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) #define __clear_monitor_timer(c) l2cap_clear_timer(c, &c->monitor_timer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) #define __set_ack_timer(c) l2cap_set_timer(c, &chan->ack_timer, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) #define __clear_ack_timer(c) l2cap_clear_timer(c, &c->ack_timer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) if (seq1 >= seq2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) return seq1 - seq2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) return chan->tx_win_max + 1 - seq2 + seq1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) return (seq + 1) % (chan->tx_win_max + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) static inline struct l2cap_chan *l2cap_chan_no_new_connection(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) static inline int l2cap_chan_no_recv(struct l2cap_chan *chan, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) return -ENOSYS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) static inline struct sk_buff *l2cap_chan_no_alloc_skb(struct l2cap_chan *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) unsigned long hdr_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) unsigned long len, int nb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) return ERR_PTR(-ENOSYS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) static inline void l2cap_chan_no_teardown(struct l2cap_chan *chan, int err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) static inline void l2cap_chan_no_close(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) static inline void l2cap_chan_no_ready(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) static inline void l2cap_chan_no_state_change(struct l2cap_chan *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) int state, int err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) static inline void l2cap_chan_no_defer(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) static inline void l2cap_chan_no_suspend(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) static inline void l2cap_chan_no_resume(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) static inline void l2cap_chan_no_set_shutdown(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) extern bool disable_ertm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) extern bool enable_ecred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) int l2cap_init_sockets(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) void l2cap_cleanup_sockets(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) bool l2cap_is_socket(struct socket *sock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) void __l2cap_le_connect_rsp_defer(struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) void __l2cap_ecred_conn_rsp_defer(struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) void __l2cap_connect_rsp_defer(struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) struct l2cap_chan *l2cap_chan_create(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) void l2cap_chan_close(struct l2cap_chan *chan, int reason);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) bdaddr_t *dst, u8 dst_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) int l2cap_chan_reconfigure(struct l2cap_chan *chan, __u16 mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) void l2cap_chan_busy(struct l2cap_chan *chan, int busy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) void l2cap_chan_set_defaults(struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) int l2cap_ertm_init(struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) typedef void (*l2cap_chan_func_t)(struct l2cap_chan *chan, void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) void l2cap_chan_list(struct l2cap_conn *conn, l2cap_chan_func_t func,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) void l2cap_chan_del(struct l2cap_chan *chan, int err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) void l2cap_send_conn_req(struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) void l2cap_move_start(struct l2cap_chan *chan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) u8 status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) void __l2cap_physical_cfm(struct l2cap_chan *chan, int result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) struct l2cap_conn *l2cap_conn_get(struct l2cap_conn *conn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) void l2cap_conn_put(struct l2cap_conn *conn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) int l2cap_register_user(struct l2cap_conn *conn, struct l2cap_user *user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) void l2cap_unregister_user(struct l2cap_conn *conn, struct l2cap_user *user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) #endif /* __L2CAP_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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